My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMBG75CA-E3/5B
- Part No.:
- SMBG75CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG75CA-E3/5B.pdf
- Description:
- TVS DIODE 75VWM 121VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,161
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMBG75CA-E3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for clamping voltage transients on signal or power lines. It features a 75 V stand-off voltage (VWM), 83.3–92.1 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), 5.0 A maximum reverse leakage at VWM, and clamps to ≤121 V at 5.0 A peak pulse current - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SMBG75CA-E3/5B datasheet, SMBG75CA-E3/5B pinout, SMBG75CA-E3/5B application, or SMBG75CA-E3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in either direction. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the low Rsurge enables effective energy diversion during ESD or lightning-induced surges.
The device is rated for 600 W peak pulse power under 10/1000 μs waveform at 0.01% duty cycle, derated linearly above 25 °C ambient per Fig. 2, and meets J-STD-020 MSL Level 1 (260 °C peak reflow). It is qualified to AEC-Q101 for automotive underhood and body electronics applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 75 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 48 V or 60 V DC systems. |
| VBR (min/max) | 83.3 V / 92.1 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering without premature conduction. |
| VC @ IPPM | ≤121 V at 5.0 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - Peak pulse power handling capacity; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge testing when properly laid out. |
| ID @ VWM | ≤5.0 μA - Reverse leakage at stand-off voltage; negligible loading on high-impedance sensor or communication lines. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and industrial enclosures. |
| Package | SMBG (DO-215AA) - Surface-mount gull-wing package with 5.0 mm × 5.0 mm pad footprint; optimized for automated placement and thermal dissipation. |
Pinout & Package
Two-terminal bidirectional device in SMBG (DO-215AA) package. No polarity marking; symmetrical terminals function identically in either orientation. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay specification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals serve as interchangeable surge current entry/exit points; no cathode band marking required for bidirectional types. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per stress test requirements. |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 surges up to 4 kV in industrial and automotive power line interfaces. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for downstream ICs like CAN transceivers or ADCs. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across temperature and lifetime, critical for safety-critical systems. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor output and microcontroller ADC input or signal conditioner. Use Value: Limits transient voltage to ≤121 V during 10/1000 μs surges, preserving signal integrity and preventing ADC saturation or latch-up in AEC-Q100-compliant systems. | Use Scenario: Surge protection on 24 V digital input channels of PLC modules subjected to field wiring inductive kick and EFT bursts. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact or optocoupler input side, upstream of series current-limiting resistor. Use Value: Absorbs 600 W surge energy without degradation, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements. |
| Automotive Body Control Module | Telecom Line Interface |
Use Scenario: Protecting LIN bus transceiver pins and power supply rails in door module ECUs where multiple actuators generate switching noise. IC Role / Device Role / Timing Role: Localized TVS placed directly at LIN transceiver VCC and bus pins to suppress coupled transients from window motor or mirror actuator drivers. Use Value: Fast <1 ns response and bidirectional symmetry ensure protection during both positive and negative polarity transients common in LIN bus fault conditions. | Use Scenario: Secondary protection on low-voltage telecom data lines (e.g., RS-485, CAN FD) entering building infrastructure equipment. IC Role / Device Role / Timing Role: Back-to-back clamping device between differential pair and ground, providing common-mode surge suppression. Use Value: Symmetrical 75 V VWM and matched VBR prevent signal distortion while maintaining >30 dB common-mode rejection up to 10 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA-E3/5B | Same VWM (75 V), but lower PPPM = 600 W (same rating), higher VC = 121 V (identical), different package: SMB (DO-214AA) - 0.165" x 0.130" vs SMBG's 0.235" x 0.130". | SMB footprint requires PCB redesign; slightly lower thermal resistance (RθJA ≈ 85 °C/W vs 100 °C/W) but same surge rating. | Select SMBJ75CA-E3/5B only if legacy SMB layout exists and board space allows smaller body size. |
| 1.5KE75CA | Same VWM/VBR specs, but axial-leaded DO-201AD package, PPPM = 1500 W, VC = 121 V, TJ max = 175 °C - not surface-mountable. | Requires through-hole assembly and larger board area; suited for prototyping or high-energy front-end protection, not automated production. | Choose 1.5KE75CA only for manual assembly or where higher pulse energy absorption is needed beyond 600 W. |
Compared with SMBJ75CA-E3/5B and 1.5KE75CA, SMBG75CA-E3/5B offers optimal balance of AEC-Q101 qualification, SMBG gull-wing geometry for fine-pitch SMT, and verified 600 W surge handling - making it preferred for volume automotive and industrial PCB designs requiring zero-layout-change upgrades from earlier SMBG-series variants.
Availability
SMBG75CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line surge suppression requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG75CA-E3/5B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMBG series is engineered specifically for high-reliability surface-mount transient suppression in automotive, industrial, and telecom applications - prioritizing AEC-Q101 compliance, low-profile gull-wing packaging, and repeatable clamping performance under repetitive surge stress.
FAQ
What does the "CA" suffix indicate in SMBG75CA-E3/5B?
The "CA" suffix denotes a bidirectional configuration - meaning SMBG75CA-E3/5B provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional "A" variants, it has no cathode marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or differential signal lines where polarity reversal may occur.
Is SMBG75CA-E3/5B RoHS compliant and halogen-free?
Yes, SMBG75CA-E3/5B carries the "E3" suffix, indicating RoHS compliance per EU Directive 2011/65/EU and industrial-grade qualification. It is not halogen-free; for halogen-free and RoHS-compliant versions, specify the "M3" suffix (e.g., SMBG75CA-M3/5B), which also meets JESD201 Class 2 whisker resistance requirements.
What is the maximum clamping voltage of SMBG75CA-E3/5B at its rated peak pulse current?
The maximum clamping voltage (VC) of SMBG75CA-E3/5B is 121 V at 5.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is guaranteed across temperature and lifetime per Vishay's characterization, and defines the upper voltage limit imposed on protected circuitry during surge events.
Can SMBG75CA-E3/5B be used in place of SMBG75A-E3/5B?
No - SMBG75CA-E3/5B is bidirectional, while SMBG75A-E3/5B is unidirectional with cathode marking and forward voltage drop (~3.5 V at 50 A). Substituting them requires verifying circuit polarity, grounding scheme, and whether reverse conduction must be blocked. Using SMBG75CA-E3/5B in a unidirectional design may allow unintended reverse current paths.
Does SMBG75CA-E3/5B require derating at elevated ambient temperatures?
Yes, SMBG75CA-E3/5B must be derated above 25 °C ambient per Figure 2 in the datasheet. Its peak pulse power decreases linearly to 50% at 125 °C junction temperature, and thermal resistance (RθJA = 100 °C/W) means proper copper pad layout (0.2" × 0.2") is essential to maintain performance in high-temperature environments such as automotive under-hood applications.
SMBG75CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG75CA-E3/5B FAQ
1.How can I place an order for SMBG75CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG75CA-E3/5B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMBG75CA-E3/5B reliable?
The price and inventory of SMBG75CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG75CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG75CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG75CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG75CA-E3/5B?
SMBG75CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG75CA-E3/5B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMBG75CA-E3/5B?
For technical support, including SMBG75CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG75CA-E3/5B requirements.
6.How does Aetrix verify that SMBG75CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG75CA-E3/5B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMBG75CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG75CA-E3/5B?
All SMBG75CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG75CA-E3/5B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMBG75CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBG75CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG75CA-E3/5B Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
